Beam, girder, or the like



E. LULING AND M. BARONI.

BEAM, GI RDER, on THE LIKE. APPL'ICATION FI'LED MAR. 27, 1917- 1,390,364, Patented Sept. 13,1921.

Flea;

I III- Inventor:

- hmzm' UETED STTES PATENT OFFICE.

EMILIO LiILINo AND MARIO BARONI, or MILAN, ITALY.

BEAM, GIRDER, OR THE LIKE.

Specification of Letters Patent.

Patented Sept. 13, 1921.

.Application filed March 27, 1917. Serial No. 157,776.

To all whom it may concern: Be it known that we, EMILIO LI'iLING and MARIO BARONI, both subjects of the King of Italy, residing, cipe Umberto and 21 Fatebenefratelli, both in Milan, in the Kingdom of Italy, have invented certain new and useful Improvements in Beams, Girders, or the like, of which the following is a specification.

This invention relates to an improvement in the construction of beams or girders, and is especially applicable to the construction of reinforced concrete beams. It enables the moment of resistance of a given part of the core or longitudinal reinforcement of a beam, that is to say, the moment of resistance of the total section of the iron bars, (whether round or square or of any other section), of which it consists, to be increased. This is effected by dividing thearea of the said section into several parts, while the value of the sum of the various partial areas resulting from this division is equal to the respectively, at 7 Via Priners, or they may be used to constitute either the upper or the lower members, or both, of compound metal frames designed to withstand tension stresses in ferro-concrete structures.

In the form shown on the drawing the eight bars a are rigidly connected together by means of threaded bolts 6 provided with nuts 0, said bolts being disposed vertically and horizontally in alternating sequence, and gripping the bars in two directions at right angles to one another. The elements comprising this structure can be readily assembled and taken apart.

What we claim and desire to secure by Let- 1 ters Patent of the United States is A structural element more particularly adapted for use in a reinforced concrete structure, comprising a plurality of longitudinal beams arranged in horizontal and vertical rows, transverse bolt members ar-.

ranged at right angles to each other and interposed alternately between the horizontal rows and between the vertical rows of beams and having their thickness designed so as to V 1 determine all the spaces between the beams,

and bolt heads and nuts on the bolt members for engaging the beams and retaining same in spaced position and against the sides of the bolt members.

In testimony whereof we aflix our signatures inpresence of two witnesses.

' EMILIO LULING.

MARIO ,BARONI. Witnesses:

OTTORINO LARRARI, IVAN LAVRETSKY. 

